This has been a tough week for Bobbi Kristina! Apparently Bobbi and adopted brother/boyfriend Nick Gordon have decided to announce the end of their engagement on twitter!

"@REALbkBrown and I are not engaged or dating. Just close like we have always been," Nick tweeted. Hours later The Houstons: On Our Own star announced the couple/friends/siblings/video game partners were hanging out together.

Perhaps Bobbi wasn't aware of Nick's plans at the time, because days later she posted a couple cryptic tweets alluding to the single-girl life. Which may be a good thing for the 19-year-old! "I'm leaving , this this good ole town and driving to the send of the world . Maybe it's beautiful there (: Xxxo," she mused. "I guess it's time 4me2stop depending on anymore."

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Adding, "Who do I trust in this world? Pfft well that's easy beezie, #Myself, No1 will kno's me like ME&They'd rather not take thtchance2knoME, &2me."

And seemingly confirming a break-up, she quickly commented: "That's incredibly fine .. Because you'd be missing out on a #REALperson Xxo #amryofme #onmyown #goingtomakeit #determined."

Apparently the break-up (and possible reconnection) of Bobbi and Nick will be chronicled on their reality show as a producer chimed into Nick's tweet announcing: @nickgordon @realbkbrown watch to see how it all unfolds on #TheHoustons on @lifetimetv."

So yeah, break-up or attempt at a ratings grab/publicity stunt?

In other Bobbi Kristina news, she has just had her THIRD accident this year. I think that rivals Lindsay Lohan. TMZ reports that Bobbi crashed her Camaro yesterday and despite the extreme damage to the car, she emerged unscathed.

The crash happened in Alpharetta, Georgia. A passerby noticed Bobbi's annihilated car in an ditch and called 911. Police conducted an investigation and believe Bobbi lost control of the car, slid down an embankment, and hit several trees, before the car stopped on a park trail. Oops.

Bobbi was given a ticket for "failure to maintain lane," and cops believe drugs and alcohol were not involved in the accident.

[Photo Credit: Brian To/WENN.com]

TELL US – BOBBI AND NICK'S BREAK-UP: REALITY TV PUBLICITY STUNT OR LEGIT? ARE YOU WATCHING THE HOUSTONS?